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152513320 = 23529131477
BaseRepresentation
bin10010001011100…
…10101100101000
3101121222110221111
421011302230220
5303020411240
623044520104
73531225151
oct1105625450
9347873844
10152513320
11790a9573
12430b0034
132579bb8b
1416380928
15d5c91ea
hex9172b28

152513320 has 32 divisors (see below), whose sum is σ = 354990600. Its totient is φ = 58901248.

The previous prime is 152513311. The next prime is 152513329. The reversal of 152513320 is 23315251.

It is an interprime number because it is at equal distance from previous prime (152513311) and next prime (152513329).

It can be written as a sum of positive squares in 4 ways, for example, as 148986436 + 3526884 = 12206^2 + 1878^2 .

It is a super-3 number, since 3×1525133203 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 152513291 and 152513300.

It is not an unprimeable number, because it can be changed into a prime (152513329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64579 + ... + 66898.

Almost surely, 2152513320 is an apocalyptic number.

152513320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152513320 is an abundant number, since it is smaller than the sum of its proper divisors (202477280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152513320 is a wasteful number, since it uses less digits than its factorization.

152513320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131517 (or 131513 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 152513320 is about 12349.6283344885. The cubic root of 152513320 is about 534.2804196118.

Adding to 152513320 its reverse (23315251), we get a palindrome (175828571).

The spelling of 152513320 in words is "one hundred fifty-two million, five hundred thirteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 580 1160 131477 262954 525908 657385 1051816 1314770 2629540 3812833 5259080 7625666 15251332 19064165 30502664 38128330 76256660 152513320